<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48">
    <path d="M0 0h48v48h-48z" fill="none"/>
    <path d="M24 4c2.21 0 4 1.79 4 4s-1.79 4-4 4-4-1.79-4-4 1.79-4 4-4zm18 14h-12v26h-4v-12h-4v12h-4v-26h-12v-4h36v4z"/>
</svg>
